Cambridge IELTS 7 : Examination papers from University of Cambridge ESOL Examinations: English for Speakers of Other Language / ... – United Kingdom : Cambridge University Press, 2009. - 176 p.+ 2 (CD-ROM) .– (Cambridge Books for Cambridge Exams. . . – 978-0-521-73919-1 : 11250 tg.

Cambridge IELTS 6 : Examination papers from University of Cambridge ESOL Examinations: English for Speakers of Other Language / ... – United Kingdom : Cambridge University Press, 2007. - 176 p.+ 2 (CD-ROM) .– (Cambridge Books for Cambridge Exams. . . – 978-0-521-69308-0 : 10 800 tg.